43 lines
1.1 KiB
NASM
43 lines
1.1 KiB
NASM
; ***************************************************************************
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; copyright : (C) 2026 by Martin Preuss
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; email : martin@libchipcard.de
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;
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; ***************************************************************************
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; * This file is part of the project "AqHome". *
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; * Please see toplevel file COPYING of that project for license details. *
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; ***************************************************************************
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#ifndef AQH_AVR_NETWORK_MSG_ADDR_R_ASM
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#define AQH_AVR_NETWORK_MSG_ADDR_R_ASM
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; ***************************************************************************
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; code
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.cseg
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; ---------------------------------------------------------------------------
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; @routine NETMSG_Address_Read @global
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; Read an ADDRESS message.
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;
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; @param X buffer to read from
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; @return R18 command
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; @return R19 address to send
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; @clobbers R18, R19
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NETMSG_Address_Read:
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adiw xh:xl, NETMSG_OFFS_CMD
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ld r18, X+ ; command
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adiw xh:xl, 5 ; skip src addr and uid
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ld r19, X+ ; addr
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sbiw xh:xl, 9 ; back to msg begin
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ret
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; @end
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#endif
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